bailey



Patented May I6, I899.

H. C. BAILEY.

FILE CUTTING MACHINE.

(Application filed Jan. 24, 1899.)

3 Sheets-Shut l.

um Model.)-

Patented May [6, I899.

H. c. BAILEY.

FILE CUTTING MACHINE.

(Application filed Jan. 94, 1899.)

3 Sheets-Sheet 2.

(No Modal.)

No. 625,235. Patented May "5,1899.

H. C. BAILEY.

FILE CUTTING MACHINE.

(Application filed Jan. 24, 1899.) (No Model.) 3 Sheets-Sheet 3.

UNITED STATES PATENT OFFICE.

HENRY CHARLES BAILEY, OF KENT, OHIO, ASSIGNOR TO JAMES DWIGHT FOOT, OFNEW YORK, N. Y.

FlLE-CUTTlNG MACHINE.

SPECIFICATION forming part of Letters Patent No. 625,235, dated May 16,1899.

Application filed January 24, 1899. Serial No. 703,259. (No model.)

To all whovn it vnag concern.-

Be it known that I, HENRY CHARLES BAI- LEY, a citizen of the UnitedStates, residing at Kent, in the county of Portage and State of Ohio,have invented certain new and useful Improvements in File-CuttingMachines, of which the following is a specification.

My invention has for its object to out two file or rasp blankssimultaneously and yet produce articles which are regularly cut anduniform-in character; and to this end my invention consists in providinga file or rasp cutting machine with blank-holding beds capable of a freerocking movement, adapting them to accommodate the positions of theblanks to the action of the cutting tool or tools, as fully set forthhereinafter and as illustrated in the accompanying drawings, in which-Figure l is a side elevation showing one form of file-cutting apparatusprovided with my improvements. Fig. 2 is an end View. Fig. 3 is a sideelevation of the carriage, bed, and their support. Fig. 4 is a plan ofFig. 3. Fig. 5 is an end view of Fig. 3. Figs. 6 and 7 are diagrammaticviews showing in an exaggerated way the capacity of the blank-supportsto accommodate themselves to the tool under different positions. Fig. 8is a diagram illustrating certain modifications.

My improvements are adapted to be used with file-cutting and in somecases with raspcutting machines of different constructions; but as shownthey are applied in machines havingabase A, horizontal groove B,carriage O, sliding longitudinally in said groove, and apropelling-screw D, with which the carriage may be connected,as desired,by turning down a wing F, while a cutterE reciprocates above thecarriage under the action of well known devices not necessary to bedescribed.

Upon the carriage is mounted a member, which I term a support G, so asto be capable of rocking upon its central axis. This support may vibrateupon a longitudinallyextended pivot as trunnions at the ends or may beotherwise supported upon a pivot so as to yield when pressure is broughtagainst the top face upon either side of the longitudinal center. Apreferable arrangement consists in recessinglongitudinally both thesupport and the carriage, so as to receive a bearin g-bar a, fittingsaid recesses, therebeingsufl ficient room between the lower face of thesup port and the n pper face of the carriage to permit the desiredrocking of the former. In recesses in the carriage, on opposite sides ofthe longitudinal center, are inserted springs b, which bear upon thesupport and tend to maintain it in a level position.

There are two beds II II for the file-blanks, arranged parallel to eachother and each mounted to vibrate on its longitudinal center upon ahearing at the upper side of the support G. While any suitable means maybe employed for so mounting the beds, Iprefer to recess the upper faceof the support and under faces of the beds to receive bearing-bars c 0.

Suitable means is provided for normally maintaining the level positionsof the beds as, for instance, a transverse strip of rubber d, bolted tothe upper face of each bed, tending to maintain both faces on the sameplane, but permitting each bed to rock to a certain extent independentlyof the other. The upper face of each bed may be provided witha zinc orother facing, as usual, and each bed is also provided with a strap e,for slipping over and holding the tang of a blank X, and side bearingsi, and to prevent the longitudinal movement of the beds the carriage Ois provided at one end with astop or bearing plate fand at the oppositeend with a standard g, through which extends screw-bolts h h, that maybe turned to bring their ends so close to the ends of the beds as toprevent longitudinal movement of the latter.

The faces of the beds and of the file blanks thereon are below thecutting-tool E, the reciprocation of which,in connection with the travelof the carriage, results in cutting the blanks transversely ordiagonally at successive points. v

Heretofore it has not been practicable to accurately cut a number offiles simulta neously in a single machine, as owing to wear of thecutter or imperfect adjustments of the parts one blank would be outdeeper than another or deeper upon one side than upon the other,resulting in imperfect and ir= regular articles. By the above means,however, the out upon each blank is regular and the articles producedare of uniform character, inasmuch as each bed and the face of the blankthereon will always accommodate itself to the inclination or position ofthat portion of the cutting edge of the tool which acts upon theblankthat is, in the operation of cutting the face of the blank and theedge of the tool will be maintained parallel to each other and the blankcannot be cut deeper at one edge than at the other. Further, the twoblanks willbecutuniformly,evenif oneshould be thicker than the other,because the support for the blanks will yield as soon as the cuttingedge of'the tool is brought against the face of the blank which is mostelevated and until both faces are in contact with the cutting edge,after which the cutting operation upon both will be uniform.

While I have referred to the use of a single tool or cutter operatingupon both blanks, there may be two cutters mounted upon a reciprocatingcarrier or head, as shown in diagram Fig. 8. In such case itisimmaterial whether or not the cutters wear uniformly. In Fig. 8 I showalso bearing-heads a 0, formed upon the support 0.

In Fig. 6 I illustrate diagrammatically the positions taken by the partswith a cutter having a somewhat inclined cutting edge and blanks ofdifferent thicknesses.

In Fig. 7 I indicate the action, assuming the cutting edge of the toolto present different angles to the different blanks.

I may remark that while I have shown the bed in a V shape thisparticular shape is not necessary, as the bed may be a square or fiatbed or other shape-as, for instance, a halfround bedwithout affectingthe general principles of the invention.

\Vithout limiting myself to the constructions shown, I claim as myinvention- 1. The combination with the traveling carriage of afile-cutting machine, of a blanksupporting bed mounted upon the carriageto move therewith and being free to rock, and a longitudinally-extendingpivot upon which the bed is supported, substantially as set forth.

2. The combination with the traveling carriage of a file-cuttingmachine, of a blanksupporting bed mounted upon the carriage to movetherewith and being free to rock, and alongitudinally-extending pivotupon which the bed is supported with its axis below the bed,substantially as set forth.

3. The combination with the traveling carriage, of a file-cuttingmachine, of a support free to rock on said carriage, a'pivot interposedbetween the carriage and support upon which the latter may rock, and twoblanksupporting beds each pivotally mounted uponlongitudinally-extending pivot upon which the support is mounted, andsprings normally tending to hold the support in a horizontal position,substantially as set forth.

6. In a file-cutting machine, a support, a longitudinally-extendingpivot upon which the support is mounted and upon which it may rock, andsprings normally tending to hold the support in ahorizontal position,combined with two parallel blank-beds, two longitudinally-extending.pivots, carried by the support, upon which the blank-beds arerespectively supported and upon which they may rock independently, andsprings normally tending to hold the blank-beds in a horizontalposition, substantially as set forth.

7. The combination of the carriage of a file-cutting machine, a' centralbearing-bar, and recessed support resting thereon, two parallelbearing-bars fitting recesses in the face of said support, and recessedblank-beds resting on said bearing-bars, substantially as set forth.

S. The combination of the carriage of a file-cutting machine, a centralbearing-bar, and recessed support resting thereon, two parallelbearing-bars fitting recesses in the face of said support and recessedblank-beds resting on said bearing-bars and springs arranged to normallymaintain the support and bed in level positions, substantially as setforth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HENRY CHARLES BAILEY.

lVitnesses:

, S.'P. WoLcoT'r,

CHARLES E. XVATTs.

